Nursing bottle



Nov. 11, 1958 G. v. CARKIN NURSING BQTTLE Filed Feb. 8, 1957 2Sheets-Sheet 1 INVEN TOR.

GORDON \7- CAR N ATTORNEYS Nov. 11, 1958 G. v. CARKIN 2,859,891

NURSING BOTTLE Filed Feb. 8Q 1957 2 Sheets-Sheet 2 INVENTOR.

502cc: v. cAr2\ \N NURSING BOTTLE Gordon V. Carkin, Lincoln, N. H.

Application February 8, 1957, Serial No. 638,954

2 Claims. (Cl. 215-11) This invention relates to an improved nursingbottle of the type involving a flask and a removable container therein.

The primary object of the invention is to provide a more practical andmore sanitary device of this kind which involves a rigid flask composedof hinged sections which can be separated to enable thorough cleansingand sterilizing of the flask, and a thin, flexible container in theflask which can be readily removed therefrom and replaced or changed,the container being adapted to be separately cleaned and sterilizedbefore being put in the flask. A number of such containers can be usedwith a single flask, so that milk or baby formula can be prepared inadvance of anticipated use and be stored under refrigeration in suchcontainers until wanted, and heated prior to use.

Another object of the invention is to provide an improved nursing bottleof the character indicated which can be made in attractive, rugged, andserviceable forms at relatively low cost.

These together with other objects and advantages which will becomeapparent reside in the details of construction and operation as morefully hereinafter described and claimed, reference being had to theaccompanying drawings forming a part hereof, wherein like numerals referto like parts throughout the several views, and in which:

Figure 1 is an exploded perspective view showing the flask open andother separated components of a nursing bottle of the present invention;

Figure 2 is a perspective view of the bottle partially assembled, withportions broken away;

Figure 3 is a fragmentary-perspective view of the bottle furtherpartially assembled, portions being broken away and in section;

Figure 4 is a perspective view of the assembled bottle;

Figure 5 is a vertical transverse section, on an enlarged scale, takensubstantially on the plane of line 55 of Figure 4; and

Figure 6 is a horizontal section, on an enlarged scale, takensubstantially on the plane of line 66 of Figure 4, showing by means ofphantom lines the manner in which one of the shell in phantom lines asection of the flask in open position. 7

Referring to the drawings in detail, the illustrated nursing bottle,indicated generally at 10, comprises a flat, oval or ellipticalsectional flask 12, a thin flexible impervious container 14, aconventional nursing nipple 16, and a clamping collar 18.

The flask 12 comprises a pair of substantially similar complementaryflat substantially semi-elliptical hollow sections and 22, having sidewalls 24 and 26, respectively, merging at their upper ends into reducedsemicylindrical .neck portions 28 and 30, respectively. The side wallsof the sections have flat inner and outer edges 32 and 34, and 32' and34', respectively. The edges 32 and 34 of the section 20 have verticallyspaced sockets 36 therein for receiving orientation pins 38 projectingfrom the edges 32 and 34 of the section 22. Extending along nited StatesPatent 0 the inner edges 32 and 32' on the sidewalls of the sections 20and 22 are hingle assemblies 40 which hinge the secare closed, asclearly seen in Figure 2, for example.

One of the sections, such as the section 22, incorporates in the sidewall 26 a vertically elongated transparent window portion 50, includingthereon graduations 52 providing a graduated scale for showing thenumber of fluid ounces of milk or baby formula contained in the bottle10. The sections may be constructed of any suitable material, a suitablenon-breakable plastic being especially suitable." By virtue of the flatshape of the flask, the bottle 10 canbe readily maintained on a flatsurface so that danger of the bottle rolling off such as a table isobviated.

The flexible, thin impervious container 14 is constructed of anysuitable material, such as natural rubber, and comprises a body portion54 conforming to the interior of the flask 12, said body portion havingthereon an elongate tubular neck 56. As shown in Figure 2, when thecontainer 14 is disposed within the flask 12 and the flask is closed,the neck portion 56 extends out of the neck of the flask. As shown inFigure 3, the container neck portion 56 is next stretched and rolleddown around the neck of the flask 12 so as to cover the partial threads46 and 48.

The nipple 16 is of conventional form and comprises a nipple portion 58and an annular base flange 60, the flange 60 being engaged on theupper-end of the flask neck on top of the rolled over neck portion 56 ofthe container 14. Thereafter, the collar 18 which has internal screwthreads 62 and an inwardly directed flange 64 on its upper end, isthreaded onto the upper end of the neck of the flask 12 with the nippleportion 58 of the nipple 16 extending through the central opening 66 ofthe collar 18.

The foregoing is considered as illustrative only of the principles ofthe invention. Since numerous modifications and changes will readilyoccur to those skilled in the art, it is not desired to limit theinvention to the exact construction and operation shown and described,and accordingly all suitable modifications and equivalents may beresorted to, as fall within the scope of the appended claims.

What is claimed as new is as follows:

1. In a nursing bottle, a flask comprising a pair of substantiallysimilar hollow registrable sections, having side walls terminating atopposite sides of the sections in flat coplanar outer and inner edgesarranged to engage when the sections are closed and registered, hingemeans on the section side walls along the inner edges of the sectionshinging the sections together, pins projecting from the edges of one ofsaid sections and sockets in the edges of the other section arranged toreceive said pins when the sections are closed and registered, saidsection side walls being extended to provide reduced semi-cylindricalneck portions on one end of the sections, said neck portions havingpartial external screw threads thereon arranged to define a single screwthread when the sections are closed and said neck portions define aflask neck, and an internally screw threaded clamping collar arranged tobe threaded on said continuous thread on the flask neck, said clampingcollar having an upper end provided with an inwardly directed annularflange having a central opening therein, said bottle further comprisinga thin flexible container having a body portion conforming to theinterior of the flask including a neck portion.

2. in a nursing bottle, a flask comprising a pair of substantiallysimilar hollow registrable sections, having side walls terminating atopposite sides of the sections in fiat coplanar outer and inner edgesarranged to engage when the sections are closed and registered, hingemeans on the sectionside Walls along the inner edges of the sectionshinging the sections together, pins projecting from the edges of one ofsaid sections and sockets in the edges of the other section arranged toreceive said pins when the sections are closed and registered, saidsection. side walls being extended to provide reduced semi-cylindricalneck portions on one end of the sections, said neck portions havingpartial external screw threads thereon arranged to define a single screwthread when the sections are closed and said neck portions define aflask neck, and an internally screw threaded clamping collar arranged tobe threaded on said continuous thread on the flask neck, said clampingcollar having an upper end provided with an inwardly directed annularflange having a central opening therein, s aid bottle further comprisinga thinfiexible container having a body portion conforming to. theinterior of the flask including a neck portion, said neck portion of thecontainer being rolled onto the external partial screw threads on theneck portions of the flask sections and engaged in the threads of theflask neck portions by the collar, and a nipple extending through theopening of the collar and having a flange engaged under the flange ofthe collar.

References Cited in the file of this patent UNITED STATES PATENTS

